JPH04126848A - Automatic device for changing woven material roll of woven material winding machine - Google Patents

Abstract

PURPOSE:To miniaturize a change part by transporting a woven fabric roll for exchange set at a given position on a guide rail to an existing woven material roll position while driving the woven material roll for exchange at a point of time of exchange and changing torque of a driving gear. CONSTITUTION:A woven material roll 1b for exchange is held on guide rails 31, 32, 34 and 35 by a supporting means 4 and the supporting means 4 is horizontally transported along the rails 31, 32, 34 and 35 by a conveyor 5 while driving the woven material roll 1b by a driving gear 33 at a point of time of an existing woven material roll 1a. When the woven material roll 1b is transported to an existing woven material roll position, torque exchange of the driving gear 33 and a driving gear 37 of the existing woven material roll is carried out at a fixed ratio.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention is an unwinding device for processing paper, film, etc. (hereinafter referred to as paper, etc.) wound around a core by attaching it to a processing machine and unwinding it. This invention relates to an automatic exchange device for exchanging raw rolls of a machine.

(Prior art and its problems) The unwinding machine for supplying the original fabric of the processing machine described above will not be able to replace the paper when the current paper roll gets close to the beginning (core side) of paper, etc. and the remaining paper is running low. Replace the original fabric roll, and at that time, join the paper, etc. supplied from the current fabric roll to the paper edge of the replacement fabric roll, and use the replacement fabric roll as the new current fabric roll. Paper and other materials supplied from the old roll were separated using a cuckoo and the roll was replaced.

Conventionally, as an example of a device for exchanging raw rolls by such a method, a Turshiso 1-type roll holding device as shown in FIG. 8 has been common. Turret 111 of this device
Four arms 114, 114, 114, and 114 protrude from both ends of the shaft 111a at right angles to each other, and between the two sets of arms, every other arm has a core shaft 112a and a guide roll shaft 113a. , core shaft 112a
, a guide roll shaft 113a are provided, each having a core 112, 112 and a coolet guide roll 113.
113 is provided.

Among these cores 112, the core 112 on the left is the current roll 1a, and the core 112 on the right is the roll 1b for replacement.

The paper etc. 2 unwound from the current raw fabric roll 1a is guided by the turret guide roll 113 of the turret 111, the guide roll 116, the dancer roll 117, the guide roll 1
16, and sent to a processing device for paper, etc. 2.

When the amount of paper, etc. 2 remaining on the current roll 1a decreases,
Paster installed under the moving paper etc. 2
The splice roll 115a of No. 115 is raised, and the front side is running on the adhesive tape attached to the paper edge of the replacement raw roll 1b, which is rotating at the same circumferential speed as the running speed of the paper etc. 2. Press paper etc. 2 to connect, and at the same time cuckoo 115
b rises and cuts the paper, etc. 2 on the current original roll side.

After connecting in this way, the old and current original fabric roll 1a that has been used is removed, and after the paster 115 returns, the turret 111 is rotated 180 degrees clockwise, and the replacement original fabric roll 1b is transferred to the new current fabric roll 1a. Used as anti-roll 1a.

In this case, a cylindrical space whose radius is centered on the turret shaft 111a and extends to the outside of the replacement roll 1b is particularly required on the lower side of the coolet 111, and it is desirable to downsize this part. It's impossible. In particular, recently, the size of the raw fabric roll 1 has increased, making further downsizing impossible.

An object of the present invention is to provide an automated material roll changing device that allows the above-mentioned replacement part to be miniaturized even when a large material roll is used.

(Means for Achieving the Object) In order to achieve the above-mentioned object, in the original fabric roll changing device of the original fabric unwinding machine, the current original fabric roll holding means 4 provided on the base 3 and the First to fourth guide rails 31.32.34.35 provided horizontally on the base 3, and replacement original fabric rolls provided on the first to fourth guide rails 3132.34.35. a holding means 4, a transfer device 5 for horizontally transporting the exchange original roll holding means 4 along the first to fourth guide rails 31, 32, 34, 35, and a control for controlling the operation of the exchange operation. A device 6 is provided.

In addition, the current original fabric roll holding means 4 includes an original fabric roll bearing 40, 40, and a first drive which is divided into a drive source 37a and a connecting drive unit 37b for driving the current original fabric roll 1a. device 37, and a first air clutch 10a that connects the first drive device 37 and the current raw fabric roll 1a.
The replacement raw roll holding means 4 includes raw roll bearings 40', 40'.
, a second drive device 33 that drives the replacement roll 1b, and a drive-side connection member 12 of the second air clutch 10b that connects the second drive device 33 and the replacement roll 1b. It is equipped with

Moreover, the first and second air clutches 10a and 10h
consists of a drive-side connection member 12 that is movable in the axial direction, and passive-side connection members 11 and 11 that are fixed in the axial direction and are provided at both ends of the roll shaft 1c of the material roll 1, respectively. .

Further, the original fabric roll switching control of the control device 6 is such that after the replacement original fabric roll 1b is moved to the position of the current original fabric roll 1a and becomes the new current original fabric roll 1a, the first and second original fabric rolls are switched. With the air clutches 10a and 10b connected, the drive torque of the first drive device 37, which is to drive the new current roll 1a, is gradually increased at a constant rate, and while the replacement roll 1b is still being driven, a new one is created. The switching operation is performed by gradually reducing the driving torque of the first driving device 33, which was driving the currently used original roll, at the above-mentioned constant rate so that the total driving torque always maintains 100%.

For this reason, the control device 6 is provided with devices on both sides of the replacement roll 1b to detect the outer diameter of the replacement roll 1b placed at the replacement roll placement position. a photoelectric type outer diameter detector 23 configured to have an optical axis parallel to the roll axis 1c of the original fabric roll 1b and to move this optical axis in the direction of the roll axis 1c; A paper edge detector 24 is moved in the direction toward the roll axis 1c in synchronization with the detector 23 and detects passage of the adhesive tape 1d affixed to the paper edge of the replacement original roll 1b.
and two rotation speed detectors 7.7 for detecting the rotation speeds of the current and replacement original rolls 1a and 1b, respectively.

(Function) As described above, if the replacement roll is placed in a predetermined position and the splice preparation button is operated, the replacement roll will be driven when the roll is replaced. The roll is transferred along the first to fourth guide rails to the current roll position, and after the transfer is completed, torque exchange between the second drive device and the first drive device is automatically performed at a constant ratio. Most of these operations are automatically executed by commands from the control device.

(Example) Fig. 1 is a side view of the automatic exchange device of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a side view of the raw roll bearing section, and Fig. 4 is a sectional view of the air clutch section. be.

This automatic fabric roll changing device includes a current fabric roll holding means 4 fixedly provided on a base 3, and first to fourth guide rails 31, 32 horizontally provided on the base 3.
．． 34.35, and a transfer device 5 for horizontally transporting the replacement raw roll holding means 4 along each of the guide rails 31, 32, 34, and 35. and a control device 6 that controls the exchange operation.
It becomes more.

The replacement original roll holding means includes two original roll bearings 40'', 40'', a second drive device 33 for driving the replacement original roll, and a connection between the second drive device 33 and the replacement original roll. It consists of a second air clutch 10b that connects the counter roll 1b.

The first and second guides L/-/ provided on the base 3
The original fabric roll bearings 40', 40°, located at both ends of the original fabric roll 1b for replacement are placed at Iz31.32, respectively. Moreover, the first and second guide rails 31
．． A second drive device 33 is mounted on third and fourth guide rails 34 and 35, which are provided horizontally on the base 3 in the same way as 32.

The fourth guide rail 35 of each of these guide rails
Other first, second and third guide rails excluding 31.32.
34 has screw shafts 311, 321, and 34 for driving, respectively.
1 are provided, and each of these screw shafts 311, 321 .
341 are configured to be driven in parallel by a third drive device 36 to move the replacement original roll holding means 4 on each guide rail.

The second drive device 33 placed on the third and fourth guide rails 34 and 35 is connected to the drive side connecting member of the air clutch 10 (second air clutch 10b) via the second drive motor 331 and the reduction gear. 12.

This second air clutch 10b has a tube shaft 13 that is fixed in the axial direction and rotated by a second drive motor 331, and the rotation direction of the tube shaft 13 is fixed by a spline groove at the end of the shaft. A slidable center shaft 14 is provided, and a driving side connecting member 12 fixed to the tip of this central shaft 14 and a cylinder 15.15 for sliding this driving side connecting member 12 in the axial direction are provided. It is provided.

(2) Furthermore, a rotational speed detector 7 for detecting the rotational speed is provided at the end of the tube shaft 13 on the opposite side from the drive-side connecting member 12. This rotation speed detector 7 is fixed to a shaft and has a circular plate 71 with a notch of a constant width on the circumference, and passes through the circumference of this notch, passes through the notch, and passes through the other parts. It consists of a light emitting device 72 for detecting light that is blocked and a light receiving device 73, and is configured to calculate the number of rotations based on the number of interruptions of light passing through each rotation.

In addition, the original fabric roll 1 used in this automatic original fabric roll exchange apparatus is provided with passive side connection members 11 of the air clutch 10 at both ends of the roll shaft 1c.

As shown in FIG. 3, the original fabric roll bearing 40'' of the above-mentioned replacement original fabric roll holding means 4 is located at the x circumference of the roll shaft 1c and on the terminal end side of the first and second guide rails 31 and 32. A fixed member 41 that holds the lower side, a rotating member 42 that holds a part of the lower side of the center side of the first and second guide rails 31 and 32 on the circumference A of the roll shaft 1c, and a rotating member 42 that holds the lower side of the roll shaft 1c. A bearing is constituted by a sliding member 43 that holds a portion of the upper two circumferences. Of these, the rotating member 42 is the air cylinder 4
4 to rotate the roll shaft 1c to the holding or releasing position, and the sliding member 43 is connected to the air cylinder 4.
5, and is configured to be slid diagonally upwards to hold or release the upper side of the roll shaft 1c.

Note that this configuration is the same for the original fabric roll bearing 40 of the current original fabric roll holding means 4, but the installation position is inside the first and second guide rails 31 and 32 (on the original fabric roll side). The film is directly mounted on the base 3 of the base 3, and is constructed so as not to interfere with the movement of the replacement raw roll bearings 40', 40'. Further, the air clutch 10 has the same structure as the first air clutch 10a provided at the position of the current original fabric roll 1a.

The current raw roll 1a is driven by the drive source 37 of the first drive device 37.
from the first drive motor 371 of a to the extension shaft 3 via the reducer
72 to the connecting drive unit 37b provided on the side opposite to the second drive device 33, and is transmitted to the first guide rail through a rotation speed detector 7 similar to the rotation speed detector 7 of the second drive device 33. The first air clutch 1 provided on the outside of 31
It is driven from 0a.

The above-mentioned current roll 1a is controlled by a control device 6 so that the number of rotations is gradually increased as the roll is unwound so that the unwound roll always has a constant running speed. The rotation speed detector 7 is configured to detect the variation in the number of rotations.

In addition, at the position of the replacement roll 1b, there is an outer diameter detector 23 for detecting the outer diameter of the roll 1 placed thereon, and an outer diameter detector 23 for detecting the position of the adhesive tape 1d attached to the end of the roll of the roll. A paper edge detector 24 is provided for detecting the paper edge.

As shown in FIG. 7, the outer diameter detectors 23 are provided in a shape N on both sides of the replacement roll 1b, and include a photoelectric detector consisting of a light emitter on one side and a light receiver on the other side. 23
3 is built-in.

The paper end detector 24 has both a light emitter and a light receiver built in, and a photoelectric detector 243 that uses the light receiver to detect changes in the reflected light when the light from the light emitter is reflected on the roll surface. The outer diameter detector 23 and the paper end detector 24 are configured to detect the passage of the motor 23.
1, the outer diameter detector 23 is provided at the tips of supporting rods 232, 232 and 242 that move on the radius toward the center of the roll axis IC of the replacement original roll 1b. The outer diameter is detected, and the paper end detector 24 detects the passage of the adhesive tape 1d based on changes in reflected light on the roll surface.

Note that the paster 8 is the same as a conventional device, so a description thereof will be omitted.

Next, the operation of the automatic fabric roll changing device of the present invention will be explained.

Adhesive tape 1d for splicing is attached to the paper edge of the replacement roll roll bearing 40°, 40" in the position where the replacement roll 1h is placed on the first and second guide rails 31 and 32. The pasted original fabric roll 1 is placed as a replacement original fabric roll 1b using a crane or the like.

When the splice preparation button is operated in this state, the second air clutch 10b operates, and its drive side connecting member 12
is advanced by the cylinder 15 to remove the original fabric roll 1 for replacement.
It is connected to the passive side connecting member 11 of b.

At the same time, the outer diameter detector 23 and the paper edge detector 24 move forward the support rods 232, 232 and 242 by the motor 231, and the photoelectric detector 233, 23 provided at the tip thereof moves forward.
At step 3, the outer diameter of the replacement original roll 1b is detected, and the machine enters a standby state.

Next, when the paper, etc. 2 is unwound from the current roll 1a, a control device 6 is used to keep the traveling speed of the paper, etc. 2 constant.
gradually increases the number of revolutions of the current roll 1a, but the outer diameter of the roll 1a decreases in proportion to this number of revolutions. Therefore, since this outer diameter can be calculated by detecting the rotation speed, when the outer diameter becomes the -th setting value calculated from the rotation speed detected by the rotation speed detector 7, the pushbutton (by manual operation), the second drive device 33 is activated and rotates the replacement original fabric roll lb. The control device 6 calculates the circumferential speed from this rotational speed and the outer diameter of the replacement material roll 1b detected before standby, and this peripheral speed is determined by the number of sheets, etc. that are being unwound from the current material roll 1a. 2
The control device 6 controls the second drive motor 331 so as to match the running speed of the replacement roll 1b, and at the same time, the paster 8 moves up and the splice roll 81 runs. Wait close to the paper etc. 2 inside.

Next, the outer diameter of the current roll 1a is detected using the same method as the first set value measurement, and when the second set value is reached, the controller 6 detects the adhesive tape for splicing based on the output of the paper end detector 24. The passage of the adhesive tape 1d is detected, and the control device 6 calculates the time required for the adhesive tape 1d to reach the splice position based on the passing point and the rotation speed.

When this adhesive tape 1d for splicing comes to the splice position, the running paper etc. 2 is pressed against the replacement raw roll 1b with the splice roll 81 and adhered with the adhesive tape 1d.
At the same time, the paper, etc. 2 is unwound from the replacement roll 1b, and the cutter 82 of the paster 8 is operated to cut the paper, etc. 2 unwound from the current roll 1a. From this point on, roll 1b is changed to the new current raw roll 1.
Switch as a.

When this switching is completed, the first drive motor 371 rapidly stops and is further reversed, without rewinding the remaining paper, etc. 2.

After this rewinding is completed, the first air clutch 10a is in a disengaged state. After this state is reached, the rotating member 42 of the current roll bearing 40 rotates, and the sliding member 4
3 slides, and this original roll bearing 40 is in a released state. After this, the operator removes the old and current original roll 1a that has been unwound using a crane or the like, and operates the transfer button.

When this transfer button is operated, the third drive device 36 is activated, and the new working material roll 1a and the second drive device 33 are moved from the replacement material roll mounting position to the regular current material roll 1a while the second driving device 33 is in operation. The roll axis IC of the new current original fabric roll 1a is moved to the original fabric roll bearing 40°, 40
” (these are in the holding state at this point), and the material roll bearings 40 and 40 located inside the first and second guide rails 31 and 32 (on the material roll side) (these are in the holding state at this point). (is in the released state) and is held in both.

After this transfer is completed, replace the original roll bearing 40'40.
゛ is in a released state, and the current original roll bearing 40.
40 enters the holding state and enters the normal operating state, and
[Drive-side connection member of the first air clutch 10a] 2 moves forward to connect the passive-side connection member 11 of the new current original fabric roll 1a.
, and the first drive device 37 is rotated at the same rotation speed as the second drive device 33.

In this case, a first drive device 37 for driving the current material roll and a second drive device 33 for driving the replacement material roll are connected to both sides of the roll shaft 1c to the new current material roll 1a. It is in a state of being. Moreover, in this case, the driving torque of the second driving device 33 was operating at 100% torque during transfer, and the first driving device 37 was operating at 0% torque in the passive state.
The drive state is 1 to 1.

From this state, according to the command from the control device 6, as shown in FIG. 37 driving torque (first torque) is 0% to 100
%, and the drive source is replaced while the total value of drive I/rook (total torque) is always maintained at 100% value.

After the drive source is completely replaced, the second air clutch 10
The drive-side connection member 12 of b is retracted, and the passive-side connection member 1
The second drive device 33 and the replacement roll roll bearings 40' and 40', which have been separated from the original roll 1, return to the original position of the replacement roll.

As shown in FIG.
0b, each drive device (motor) 37 (371), 33
(331), 36, and the base star 8 by sending and receiving various signals.

Thereafter, each time the original fabric roll 1 is replaced, the above-mentioned operation is automatically performed.

(Effects of the Invention) As described above, since the original roll changing device of the present invention is an automatic changing device, the work performed by the operator is extremely small, and most of the work is performed by commands from the control device.

In addition, the route for transferring the replacement roll to the current roll position is linear transport along horizontally arranged guide rails, so compared to the conventional turret-based transport,
The space required for transportation is saved to a minimum, and it is possible to prevent the equipment from becoming bulky.

[Brief explanation of the drawing]

Fig. 1 is a side view of the exchange device of the present invention, Fig. 2 is a plan view, Fig. 3 is a side view of the raw roll bearing structure, Fig. 4 is a sectional view of the air clutch, and Fig. 5 is a control An explanatory diagram of the system, Fig. 6 is a characteristic diagram of L/L switching, Fig. 7 is a configuration diagram of the outer diameter detector and paper edge detector of the original roll for replacement, and Fig. 8 is a diagram of the conventional exchanging device. It is an explanatory diagram. 1: Raw roll, 1a: Current roll, 1b: Replacement roll, 1c: Roll shaft, 1d: Adhesive tape, 10: Air clutch, 10a: First air clutch, 10b = Second air Clutch, 11: Passive side connection member, 12: Drive side connection member, 23: Outer diameter detector, 24: Paper edge detector, 3: Base, 31: First guide rail, 32: Second guide rail, 33:
Second drive device, 34: Third guide rail, 35: Fourth guide rail, 36: Third drive device, 37: First drive device, 37a: Drive 9] Source, 37b = Connection drive section, 4: Original fabric roll Holding means, 40.40゛: Original fabric roll bearing, 5: Transfer device, 6: Control device, 7: Rotation speed detector.

Claims (1)

[Scope of Claims] 1) In a fabric roll changing device of a fabric unwinding machine, a current fabric roll holding means provided on a base, and a first to horizontal fabric roll holding means provided on the base; A fourth guide rail, a replacement material roll holding means provided on the first to fourth guide rails, and a replacement material roll holding means provided on the first to fourth guide rails. An automatic roll changer for a roll unwinder, characterized by comprising a transfer device for horizontal transfer and a control device for controlling the changing operation. 2) The current material roll holding means includes a material roll bearing, a first drive device that is divided into a drive source and a connecting drive section for driving the current material roll, and this first drive. A first air clutch comprising a driving side connecting member of a first air clutch that connects the device and the current raw fabric roll.
An automatic material roll changing device for a material unwinding machine as described in 2. 3) The replacement material roll holding means includes a material roll bearing, a second drive device that drives the replacement material roll, and a connection between the second drive device and the replacement material roll. 2. The automatic fabric roll changing device for a fabric unwinding machine according to claim 1, further comprising: a drive-side connecting member of a second air clutch. 4) The first and second air clutches are composed of a drive-side connection member that is movable in the axial direction, and a passive-side connection member that is fixed in the axial direction and is provided at both ends of the roll shaft of the original fabric roll. An automatic roll change device for a roll unwinding machine according to items 2 and 3, characterized in that: 5) The control device's original fabric roll switching control involves connecting the first and second air clutches after the replacement fabric roll moves to the position of the current fabric roll and becomes the new current fabric roll. In this state, the driving torque of the first drive device that is supposed to drive the new current roll is gradually increased at a constant rate, and the new current roll is driven while the replacement roll is still being driven. 2. The web unwinding machine according to claim 1, wherein the switching operation is performed by gradually decreasing the driving torque of the second driving device at the constant rate so that the total driving torque is always maintained at 100%. Automatic material roll changing device. 6) The control device is provided with the original fabric roll provided on both sides of the replacement fabric roll to detect the outer diameter of the replacement fabric roll placed at the replacement fabric roll mounting position. a photoelectric outer diameter detector configured to have an optical axis parallel to the roll axis of the anti-roll and to move the optical axis in a direction toward the roll axis; a paper edge detector that is moved in the direction toward the roll axis and detects the passage of an adhesive tape affixed to the paper edge of the replacement material roll; and a paper edge detector that detects the number of revolutions of the current and replacement material rolls, respectively. 6. The automatic fabric roll changing device for a fabric unwinding machine according to item 1 or item 5, characterized in that it is equipped with two rotation speed detectors for detecting rotation speed.